Medium severity4.9NVD Advisory· Published Jul 14, 2021· Updated Jun 17, 2026

CVE-2021-24116

Description

In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

WolfSSL/Wolfssl2 versions
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*range: <4.6.0
- (no CPE)range: <=4.6.0
wolfSSL/wolfSSLdescription

Patches

Vulnerability mechanics

References

github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.mdnvdRelease NotesThird Party Advisory
github.com/wolfSSL/wolfssl/releasesnvdRelease NotesThird Party Advisory

News mentions

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cvss	0.319
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000